Good doctors -- good medical professionals -- Rory has learned over time -- are not the ones who don't let things affect them. Rory figures you have to be affected, concerned, otherwise you're not doing your job. The job isn't just to heal, it's to make things better.

But the thing is: Pity rarely makes things better. So when he does look at Sarah's scars, he doesn't let the way they hurt him show on his face. He can't fix these scars, or the deeper ones, with medicine. "How'd you get these?" he asks.